<template>
    <h1>APP 组件</h1>
    <button @click="flag = !flag">展示/隐藏 子组件</button>
    <hr />

    <qf v-if="flag" />
</template>

<script setup>
import qf from "./components/qf.vue";
import { ref } from "vue";

const flag = ref(true)
</script>

<style></style>
